We look at the division of 59302559 by 815 
The aim is to understand the frequency of 815 in 59302559.

Step 1:
When dividing 5 by 815, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 815

Step 2:
The number 815 fits into 59 0 times, leaving a remainder of 59.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 59, we get 59.
Fetch the next digit (3) from the dividend, attach it to 59 and continue: 593 / 815

Advancing to step 3:
815 goes into 593 0 times with a remainder of 593.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 593 leaves us with 593.
Append the next digit (0) from the dividend to 593 and continue with: 5930 / 815

Moving on to step 4:
815 goes into 5930 7 times with a remainder of 225.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 5705 from 5930 to get 225.
Grab the next digit (2) from the dividend, add it to 225, then carry on: 2252 / 815

Let's proceed to step 5:
2252 divided by 815 is 2 with a remainder of 622.
The number 2 becomes the next digit in our result. 
Result so far: 72.0
If we subtract 1630 from 2252, we get 622.
Include the next digit (5) from the dividend after 622, then repeat: 6225 / 815

Let's proceed to step 6:
When dividing 6225 by 815, we get 7 with a remainder of 520.
Write down 7 as next digit of the result. 
Result so far: 727.0
Deduct 5705 from 6225 and we're left with 520.
Include the next digit (5) from the dividend after 520, then repeat: 5205 / 815

On to step 7:
815 goes into 5205 6 times with a remainder of 315.
The number 6 becomes the next digit in our result. 
Result so far: 7276.0
Deduct 4890 from 5205 and we're left with 315.
Grab the next digit (9) from the dividend, add it to 315, then carry on: 3159 / 815

Step 8:
3159 divided by 815 is 3 with a remainder of 714.
The next digit of our result is 3. 
Result so far: 72763.0
If we subtract 2445 from 3159, we get 714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7140, and continue the process.

On to step 9:
The number 815 fits into 7140 8 times, leaving a remainder of 620.
Use 8 as the next digit of our solution. 
Result so far: 72763.8
If we subtract 6520 from 7140, we get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Moving on to step 10:
When dividing 6200 by 815, we get 7 with a remainder of 495.
The next digit of our result is 7. 
Result so far: 72763.87
Deduct 5705 from 6200 and we're left with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Going ahead to step 11:
The number 815 fits into 4950 6 times, leaving a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 72763.876
If we take 4890 away from 4950, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
600 divided by 815 is 0 with a remainder of 600.
The next digit of our result is 0. 
Result so far: 72763.876
If we take 0 away from 600, we end up with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 13:
815 can be fit into 6000 7 times, resulting in a remainder of 295.
The number 7 becomes the next digit in our result. 
Result so far: 72763.87607
Subtract 5705 from 6000 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 14:
815 goes into 2950 3 times with a remainder of 505.
The next digit of our result is 3. 
Result so far: 72763.876073
If we subtract 2445 from 2950, we get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Let's proceed to step 15:
When dividing 5050 by 815, we get 6 with a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 72763.8760736
Subtracting 4890 from 5050 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 16:
If we divide 1600 by 815, we get 1 and a remainder of 785.
Write down 1 as next digit of the result. 
Result so far: 72763.87607361
Deduct 815 from 1600 and we're left with 785.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7850, and continue the process.

In conclusion, the division gives 72763.87607361 with a balance of 7.85e-07.